Back-propagation compares neural network actual outputs (for a given set of inputs, and weights and bias values) with target values, determines the magnitude and direction of the difference between ...

Artificial Neural Network (ANN) are highly interconnected and highly parallel systems. Back Propagation is a common method of training artificial neural networks so as to minimize objective function.

Training a neural network is the process of finding a set of weight and bias values so that for a given set of inputs, the outputs produced by the neural network are very close to some target values.